2019 NAOJ-ngVLA Science Conference
Photograph • September 19th, 2019
Conference picture at the 2019 NAOJ-ngVLA Science Conference, which was the first international ngVLA Science Meeting.
Science Video • June 25th, 2020
I will discuss milliarcsecond imaging of neutron stars and accreting black holes. The exquisite sensitivity and angular resolution of the Next Generation Very Large Array will allow precise estimates of the proper motions, and often, the geometric parallaxes of these systems. Astrometry of stellar mass compact objects will provide vital information on natal kicks, and in some cases, system masses through astrometric wobble, yielding one of the few available clues about the nature of the central engines of supernovae. For supermassive black holes, proper motions in combination with LISA standard siren distances will allow 6D mapping of the phase space of galaxy clusters, providing unique information about the distribution of dark matter within them. Moving beyond imaging, the ngVLA's capability to use subarrays to make simultaneous measurements at many frequencies will open up the technique of eclipse mapping of X-ray binary jets, allowing a new probe of their structures and acceleration processes.